2152403236 has 9 divisors (see below), whose sum is σ = 3766868049. Its totient is φ = 1076155224.

The previous prime is 2152403233. The next prime is 2152403237. The reversal of 2152403236 is 6323042512.

The square root of 2152403236 is 46394.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 2121155136 = 5590^2 + 46056^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152403233) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 81190 + ... + 104386.

Almost surely, 2^2152403236 is an apocalyptic number.

2152403236 is the 46394-th square number.

It is an amenable number.

2152403236 is a deficient number, since it is larger than the sum of its proper divisors (1614464813).

2152403236 is an frugal number, since it uses more digits than its factorization.

2152403236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46398 (or 23199 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The cubic root of 2152403236 is about 1291.1435957924.

Adding to 2152403236 its reverse (6323042512), we get a palindrome (8475445748).

The spelling of 2152403236 in words is "two billion, one hundred fifty-two million, four hundred three thousand, two hundred thirty-six".